How screwed am I?

all this depends on how picky your state is. call your state office DMV, tell them you bought this car out of Ga, a NON title state on these old cars. if they except all this, write out a bill of sale from John Doe, address such and such atlanta ga. my state takes this with a ID/OD, no question!!!!!!!

apply to your state for lost title, in name of last owner, have them send it to that name with YOUR address there, ****** IF your state does not require titles to be notorized, ...... well then do your paperwork........